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Ok, I've searched and read a couple different posts about using denatured alcohol for extractions. Some people say not to use it at all because it can leave behind harmful residues/toxins. Others say it depends on what it's denatured with. I can get ethanol that is denatured with methanol. Assuming it evaporates clean (which I will test before using), it should be safe to use, right?

Evaporate a couple hundred milliliters and make sure there is no residue. From what I've read denatured alcohol can include methanol, water and petroleum distillates. So keep that in mind when you're doing your extraction.

--------------------It is better to be hated for what you are than to be loved for what you are not. -Andre Gide

"Generosity is nothing else than a craze to possess. All which I abandon, all which I give, I enjoy in a higher manner through the fact that I give it away. To give is to enjoy possessively the object which one gives."

Probably should be fine. Just be sure that all evaporates off in the end.

--------------------"What is in us that turns a deaf ear to the cries of human suffering?"

"Belief is a beautiful armor
But makes for the heaviest sword"
- John Mayer

Making the noise "penicillin" is no substitute for actually taking penicillin.

"This country, with its institutions, belongs to the people who inhabit it. Whenever they shall grow weary of the existing government, they can exercise their constitutional right of amending it, or their revolutionary right to dismember or overthrow it." -Abraham Lincoln

The drunks here separate the ingridient that gives the bad taste from the alcohol by pouring the alcohol over a frozen iron bar (needs to be at least -40 celsius, possible here in winter sometimes). The alcohol will flow down the bar, but everything else will freeze and stick to the bar. The locals use a piece of railroad track, its good because of the U-shape.

Anyway I've only heard it done, never seen it.

--------------------"All substances are poisons; there is none which is not a poison. The right dose differentiates a poison and a remedy." -Paracelsius

Well that's silly, because if it's ethanol denatured with methanol, then they both would flow down the bar, both being alcohols and all. Unless of course methanol has a low boiling point or freezing point. That's very risky behavior.

--------------------"What is in us that turns a deaf ear to the cries of human suffering?"

"Belief is a beautiful armor
But makes for the heaviest sword"
- John Mayer

Making the noise "penicillin" is no substitute for actually taking penicillin.

"This country, with its institutions, belongs to the people who inhabit it. Whenever they shall grow weary of the existing government, they can exercise their constitutional right of amending it, or their revolutionary right to dismember or overthrow it." -Abraham Lincoln

Alcohol is not denatured with methanol here, but with a non-toxic vile-tasting substance that makes you puke instantly if you try to drink it. I don't know what kind of denatured alcohol he plans on using. The drunks here use brand names Sinol and Marinol, which contain no methanol.

edit: And yes, you are right -using that method with methanol would be very risky.

Hehe, in the states, Marinol is the name of a brand name Cannabinoid pill.

--------------------"What is in us that turns a deaf ear to the cries of human suffering?"

"Belief is a beautiful armor
But makes for the heaviest sword"
- John Mayer

Making the noise "penicillin" is no substitute for actually taking penicillin.

"This country, with its institutions, belongs to the people who inhabit it. Whenever they shall grow weary of the existing government, they can exercise their constitutional right of amending it, or their revolutionary right to dismember or overthrow it." -Abraham Lincoln

Can't you buy grain alcohol in most parts of the country? Not legal to sell on the shelf here in PA but I hear you can buy it with somekinda special 'firehandlers' permit (don't ask, because I don't know), or just travel 40 mins cross the border to West Virginia.